We present a flexible scheme to realize non-artificial non-Markovian dynamics of an electronic spin qubit, using a nitrogen-vacancy center in diamond where the inherent nitrogen spin serves as a regulator of the dynamics. By changing the population of the nitrogen spin, we show that we can smoothly tune the non-Markovianity of the electron spin's dynamic. Furthermore, we examine the decoherence dynamics induced by the spin bath to exclude other sources of non-Markovianity. The amount of collected measurement data is kept at a minimum by employing Bayesian data analysis. This allows for a precise quantification of the parameters involved in the description of the dynamics and a prediction of so far unobserved data points.
@article{arxiv.1802.00819,
title = {Controllable Non-Markovianity for a Spin Qubit in Diamond},
author = {Jan F. Haase and Philipp J. Vetter and Thomas Unden and Andrea Smirne and Joachim Rosskopf and Boris Naydenov and Alastair Stacey and Fedor Jelezko and Martin B. Plenio and Susana F. Huelga},
journal= {arXiv preprint arXiv:1802.00819},
year = {2018}
}
Comments
12 pages, 9 figure, including supplemental material